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UV radiation damages hair similar to bleaching, but double bleaching causes more severe protein degradation.

Ozonated water damages hair structure and proteins.

Different tests are used to see how hair care products affect hair, and choosing the right test is important for accurate results.

Infrared and Raman imaging can non-destructively analyze hair structure and help diagnose hair conditions.

TGase 3 helps build hair structure by forming strong bonds between proteins.

Cuticle damage doesn't affect hair's tensile strength; the cortex is responsible for it.

Pollution exposure speeds up hair damage.

S100A3 protein is mainly found in specific parts of human hair cells.

AFM can diagnose hair disorders by revealing detailed hair surface changes.

NaOH treatment improves hair strength and suitability for textiles.

Hair straightening methods have advanced to improve effectiveness and reduce damage, but still rely on heat and chemicals.

Keratose, derived from human hair, is a non-toxic biomaterial good for tissue regeneration and integrates well with body tissues.

Smad4 is important for healthy hair follicles because it helps produce a protein needed for hair to stick together and grow.

Certain molecules in hair change with age and could be used for cosmetic treatments.

Chronic stress in mice changes skin metabolism and gene expression, leading to hair loss.

Breast cancer alters specific molecular structures in hair, which revert after cancer removal.

Human hair has more unsaturated fats inside than on the surface, and certain lipids may help bind the outer and inner layers together.

Plant oils and polymers can help protect African hair from damage during styling.

Amino acids like arginine and cysteine protect hair during chemical treatments, keeping it strong and less brittle.

S100A3 protein is crucial for hair shaft formation in mice.

PDI helps restore over-bleached hair's strength and structure by attaching special peptides.

Heat damages hair, with Asian hair losing more protein than Caucasian hair.

Hair's structure and properties change with pH; acidic pH maintains strength and less swelling, while alkaline pH increases water content and swelling.

Curly hair breaks more easily, especially with chemical treatments, but simpler grooming reduces breakage.

The document explains how hair is studied in forensics to identify its source and its role in criminal investigations.

The arrector pili muscle might play a role in hair loss and needs more research to understand its impact.

Hair fibers break by cuticle cell slipping, shape changing, cuticle fraying, and surface cracking when stretched under specific conditions.

The KRTAP11-1 gene promoter is crucial for specific expression in sheep wool cortex.

White hair has less lipid content and absorbs water differently than brown hair.

Hair increases in size when it absorbs water, and treatments like bleaching affect how much water it can take in.